Carbonating apparatus.



UNITED STATES PATENT OFFICE.

EDWARD E. MURPHY, OF REVERE, MASSACHUSETTS, ASSIGNOR TO NEW ERA CARBONATOR COMPANY, TOE CHARLESTOWN, WEST VIRGINIA.

CARBONATIN G APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 678,368, dated July 16, 1901.

Application filed September 8, I909. Serial No. 29,357. (No model.)

To all whom it may concern:

Be it known that I, EDWARD E. MURPHY,

of Beachmont, Revere, in the county of Suffolk and State of Massachusetts, have inyented certainnew and useful Improvements in Carbonating Apparatus, of which the following is a specification.

My invention relates to apparatus for car bonating water or other liquid. I

The object of my invention is to provide a simple and efficient portable automatic apparatus which shall produce a thorough mechanical combination of the liquid and the carbonic-acid or other gas and wherein the water to be carbonated is first cooled before coming in contact with the gas, whereby the water being at a low temperature the absorption of the gas takes place more readily.

My invention consists of certain novel features hereinafter described, and particularly pointed out in the claims.

In the accompanying drawing the figure is a longitudinal vertical central section through an apparatus embodying my invention.

Within the water and ice tank A is located the reservoir B for holding a supply of carbonated liquid, and said reservoir rests in the tank A on the feet 0. The waste-pipe D for carrying off waste water from inside thetank is so arranged as to maintain the water-line above the reservoir B, so as to keep the carbonated liquid therein'at a low temperature. The water to be carbonated enters through the pipe E, which has a number of coils F around the body of the reservoir B and below the water-line in the tank A. The water entering said pipe then passes forward to the pipe G, to which the pipe E is soldered, and then enters the hollow cap H, to which the pipe G is soldered. The cap H has a circular flange I resting upon the packing K,.which in turn rests on top of the spray-head J and adjustable nozzle L. The cap H and packing K are held down in place by means of the union J. The lower end of the adjustable nozzle L is provided with a series of perforations M in alinement with the central passage M of the induction-head N, which is secured at its upper end by screw-threads to the spray-head J, and said head is also provided with radial passages N Located A within the adjustable nozzle L and above the perforations M is a strainer N. Located on one side of the spray-head J is a nose 0, communicating with the interior of said head and having a passage 0 for the gas-supply and controlled by the valve 0 having a suitable flexible face to adapt it readily to its seat, and acting against said valve the coiled spring 0 is attached to assist in operating .the valve 0 to close the passage 0 as the apparatus fills with water. The cap 0 is screwed into the top of the nose 0 and has an opening in which the outer end of the stem of the valve 0 moves, and against said cap rests the upper end of said spring 0 The gas-supply enters the passage 0 through the pipe 0 from any suitable source of supply. The lower end of the induction-head is screwthreaded, and to itis secured the mixing- Chamber P, provided at its lower end with inwardly-turned flanges P, on which rests the wire-sponge P extending forwardly to the induction-head N. Surrounding said 1 mixing-chamber P and out of contact therewith to leave an annular space Q is a tube Q, secured at its upper end into the spray-head J and secured to the sleeve P at its lower end,which sleeve is held in place by the nutP The pipe S is provided with an inlet S at its lower end within the reservoir B and passes from said reservoir through a suitable stufiing-box T, and from which leads any suitable pipe for carrying the carbonated liquid to any desired point. A suitable hand-valveU is located in the pipe S for controlling the outlet. As shown in the drawing, the waterline is above the carbonator and the coils, so

that they are always submerged in cold water, and the water to be carbonated passingaround the numerous coils F is cooled and brought to a low temperature by the time it reaches the spray-head J, where it is mixed with the gas.

In operation the liquid-supply pipe is con- 5 nected to a high-pressure pipe under from one hundred and seventy-five to two hundred pounds pressure, and the gas-supply pipe is connected to a gas-supply under from one v hundred and twenty-five to one hundred and 10:. fifty pounds pressure. To prepare the appa ratus for use, gas is first supplied through the passage 0' and drives out all the air from the reservoir B through the pipe S, after which the valve U is turned to close the pipe S and the gas is allowed to reach the pressure required. lVater or other liquid is then admitted through the pipe E under the pressure above stated, which is above the gas-pressure, and passes from the pipe E into the spray-head J, and the liquid being cut up by the metallic sponge P at once causes the absorption of the gas in the chamber P and the passage of the liquid to the reservoir B until the apparatus is entirely filled with carbonated liquid up to the perforations M in the nozzle L. Now when the carbonated liquid is drawn off from the pipe S, the spray-nozzle L being so constructed as to retard the admission of water, the carbonated liquid is drawn off faster than the same amount of water can be supplied in the same period of time through said nozzle owing to the small perforations in said nozzle retarding the flow of the water, thereby providing room in the mixing-chamber for the entrance of new gas, which enters by the opening of the valve 0 which valve is opened by the pressure behind it, which is then greater than the pressure within the tube Q, which pressure at that in stant has been reduced by the drawing off of carbonated liquid. The water continuing to flow in through the nozzle L produces a greater pressure than the pressure of the gas admitted to the mixing-chamber by the drawing ofi of the carbonated liquid and closes the valve 0 before the water-level has reached said valve, which remains closed as the water rises, and the valve is maintained in its closed position by means of the spring 0 and the rising water and consequent pressure in the chamber P as said chamber fills. The mixing-chamber P is of much less diameter than the reservoir B, so that by partially or entirely emptying said chamber the reduction of pressure owing to the reduction of volume will cause the introduction of new gas by reason of the gas-pressure being sufiiciently great to open the valve 0 and pass into the chamber P. As the water continues to fiow in through the nozzle L it passes down into the chamber P and mixes with the gas previously admitted to said chamber, and as the volume of water increases the pressure increases and closes the gas-valve 0 which valve is closed as soon as the pressure within the chamber P exceeds the gas-pressu re. The admission of gas to the chamber P is controlled by the withdrawal of a certain volume of carbonated liquid, which causes the reduction of pressure in the mixing-chamber below the initial gas-pressure, so that the gas under its own pressure raises the valve 0 and passes into the mixing-chamber P at that instant, where it is mixed with the water passing down through the metallic sponge P contained in the mixing-chamber P, the admission of the gas being entirely independent of the flow of the water into the mixing-chamber P. Any excess of gas which may pass down to the carbonated liquid from the bottom of the chamber P will leave said carbonated liquid and circulate up through the annular passage Q and will be drawn into the induction-head N through the radial passages N by the induction of the inflowing water and come into contact with,

a fresh supply of water, so that in this manner the gas is utilized as a certain volume of water takes up a certain volume of gas, and any excess of gas passes up and is utilized by coming in contact with a fresh supply of water and mixing therewith. In this apparatus the original gas coming through the passage 0 is fed byits own pressure into the mixingchamber P, while any excess of gas passing from the bottom of the chamber is drawn up by the induction of the inflowin g water. The excess of gas passes up because it is lighter than the water. By drawing the cool carbonated liquid directly from the reservoir and dispensing with the usual cooling devices the gas remains mixed with the water, whereas in the ordinary coolers the carbonated liquid is driven through coils and the violent agitation thus caused is apt to separate the gas from the water and produce an objectionable sputtering at the outlet.

In my apparatus the cooling of the water before its mixture with the gas produces a greater absorption of the gas, as it is at a low temperature, and, further, the carbonated liquid being in a chilled state can be drawn directly for use, it being unnecessary to pass it through a cooling device. The valve R,- having a suitable handle R, controls the airoutlet R through which air is allowed to escape from time to time by operating the valve R.

Having thus ascertained the nature of my invention and set forth a construction embodying the same, what I claim as new, and

rod

IIO

desire to secure by Letters Patent of the.

United States, is

1. In a carbonating apparatus, a reservoir for storing the carbonated liquid, a mixingchamber in communication with said reservoir, a gas-inlet pipe for supplying gas to said mixing-chamber, a liquid-inlet pipe forsupplying liquid under pressure to said mixingchamber and coiled around said reservoir, a cooling-tank within which said reservoir and liquid-supply pipe are located, a waste-pipe communicating with the liquid in said cool- .ing-tank and having an opening located above the reservoir and liquid-supply pipe whereby said liquid-supply pipe and reservoir are constantly submerged in the liquid in said tank, and a discharge-pipe for the liquid communicating with said reservoir.

2. In a carbonating apparatus, areservoir for storing the carbonated liquid, a mixingchamber in communication with said reservoir, a gas-inlet pipe for supplying gas to said mixing-chamber, a liquid-inlet pipe for supplying liquid under pressure to said mixingchamber, a cooling-tank Within which said In testimony whereof I have signed my reservoir and said liquid-supply pipe are 10- name to this specification, in the presence of IO cated, a waste-pipe communicating with the two subscribing witnesses, this 6th day of liquid in said cooling-tank and having an September, A. D. 1900. V opening located above the reservoir whereby EDWARD E. MURPHY;

said reservoir is constantly submerged in the Witnessesi liquid in said tank, and a discharge-pipe for A. L. WESSER,

the liquid communicating with said reservoir. V. M. L/IACLELIJAN'. 

